Add delegate to install web_contents helpers for MimeHandlerView.

chrome/browser/extensions/api/chrome_extensions_api_client.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/extensions/api/chrome_extensions_api_client.h"
 
 #include "base/files/file_path.h"
 #include "chrome/browser/extensions/api/storage/sync_value_store_cache.h"
 #include "chrome/browser/guest_view/app_view/chrome_app_view_guest_delegate.h"
 #include "chrome/browser/guest_view/extension_options/extension_options_guest.h"
+#include "chrome/browser/guest_view/mime_handler_view/chrome_mime_handler_view_guest_delegate.h"
 #include "chrome/browser/guest_view/web_view/chrome_web_view_guest_delegate.h"
 #include "chrome/browser/guest_view/web_view/chrome_web_view_permission_helper_delegate.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "extensions/browser/guest_view/app_view/app_view_guest.h"
 #include "extensions/browser/guest_view/web_view/web_view_guest.h"
 #include "extensions/browser/guest_view/web_view/web_view_permission_helper.h"
 
 #if defined(ENABLE_CONFIGURATION_POLICY)
 #include "chrome/browser/extensions/api/storage/managed_value_store_cache.h"
@@ skipping 19 matching lines @@
   (*caches)[settings_namespace::MANAGED] =
       new ManagedValueStoreCache(context, factory, observers);
 #endif
 }
 
 AppViewGuestDelegate* ChromeExtensionsAPIClient::CreateAppViewGuestDelegate()
     const {
   return new ChromeAppViewGuestDelegate();
 }
 
+scoped_ptr<MimeHandlerViewGuestDelegate>
+ChromeExtensionsAPIClient::CreateMimeHandlerViewGuestDelegate() const {
+  return scoped_ptr<ChromeMimeHandlerViewGuestDelegate>(
+      new ChromeMimeHandlerViewGuestDelegate()).PassAs<
+          MimeHandlerViewGuestDelegate>();
+}
+
 WebViewGuestDelegate* ChromeExtensionsAPIClient::CreateWebViewGuestDelegate(
     WebViewGuest* web_view_guest) const {
   return new ChromeWebViewGuestDelegate(web_view_guest);
 }
 
 WebViewPermissionHelperDelegate* ChromeExtensionsAPIClient::
     CreateWebViewPermissionHelperDelegate(
         WebViewPermissionHelper* web_view_permission_helper) const {
   return new ChromeWebViewPermissionHelperDelegate(web_view_permission_helper);
 }
 
 void ChromeExtensionsAPIClient::RegisterGuestViewTypes() {
   ExtensionOptionsGuest::Register();
 }
 
 }  // namespace extensions